In fermentation, what do cells use instead of oxygen to break down glucose?

Answer:

The particles are negatively charged.

Explanation:

Electron was discovered by j. j. Thomson in 1897 during the study of cathode ray properties.

He constructed the glass tube and create vacuum in it. He applied electric current between electrodes. He noticed that a ray of particles coming from cathode to wards positively charged anode. This ray was cathode ray.

Properties of cathode ray:

The ray is travel in straight line.

The cathode ray is independent of composition of cathode.

When electric field is applied cathode ray is deflected towards the positively charged plate.

Hence it was consist of negatively charged particles.

A table comparing the important parameters of the two engine designs is shown below:ParametersDesign 1Design 2Compression Ratio 18:118:1Φ (Equivalence Ratio)0.75 (Richer)0.65 (Leaner)EGR Level 10%15%Intake Temperature 80°C100°C Intake Pressure 1 bar0.5 bar Intake Valve Closing −15 deg BTDC−25 deg BTDC.

The compression ratio is the ratio of the volume of the combustion chamber from its largest capacity to its smallest capacity. The compression ratio in Design 1 is 18:1, while in Design 2, it is 18:1. The higher compression ratio is seen in Design 1, which will lead to a higher engine efficiency since more fuel energy is converted into useful work.

The Φ (equivalence ratio) is the ratio of the actual air/fuel ratio to the stoichiometric air/fuel ratio. A Φ value of 1.0 indicates a stoichiometric mixture, whereas values less than 1.0 indicate a lean mixture and values greater than 1.0 indicate a rich mixture. The Equivalence ratio in Design 1 is 0.75, which means it is running rich, while in Design 2, it is 0.65, which means it is running lean.

The design 2 engine has a higher Φ (equivalence ratio) level, which may lead to lower NOx emissions due to lean-burn combustion.The EGR (Exhaust Gas Recirculation) level in Design 1 is 10%, whereas in Design 2, it is 15%. The EGR level in Design 2 is higher than that in Design 1, which can help to reduce NOx emissions by lowering the temperature of combustion.

Intake temperature is 80°C in Design 1, whereas in Design 2, it is 100°C. The higher intake temperature in Design 2 means that the engine will have a higher thermal efficiency due to the increased Carnot efficiency.Intake pressure is 1 bar in Design 1, while in Design 2, it is 0.5 bar. The higher intake pressure in Design 1 results in more air being compressed into the combustion chamber, allowing for more fuel to be burned and greater efficiency.

Intake Valve Closing (IVC) is −15 deg BTDC in Design 1 and −25 deg BTDC in Design 2. The IVC timing is responsible for trapping the charge in the combustion chamber and influencing the engine's breathing. The lower IVC timing in Design 2 provides less resistance to flow, resulting in greater volumetric efficiency.

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Answer:

the awnser is c

Explanation:

Answer:

i do not know this one ooooo

Answer:

Pacific Ocean

Explanation:

Answer:

3.65

Explanation:

In Picture Below

Answer:

E¹= Equivalent mass of Cu= 31.77

E²= Equivalent mass of Ag= 108

Weight of Cu deposited = 3.5

So Wt.of Ag deposited =3.5x(108/31.77) = 11.898 g

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The substance in the image above would be classified as a mixture of elements (option E).

A compound is a substance formed by chemical bonding of two or more elements in definite proportions by weight.

On the other hand, a mixture is made when two or more substances are combined, but they are not combined chemically.

According to this question, an image is shown with two different substances or elements as distinguished by coloration (white and purple). These elements are combined but not chemically bonded, hence, is a mixture.

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The process that separates pigments from a plant extract is known as chromatography.

This technique involves the separation of different components of a mixture based on their chemical properties and interactions with a stationary phase and a mobile phase. In the case of plant pigments, the stationary phase can be a paper or a thin layer of silica gel or alumina, and the mobile phase is typically a solvent that is able to dissolve the pigments.
When the plant extract is applied to the stationary phase, the pigments will migrate through the mobile phase at different rates depending on their chemical properties, such as their polarity and size. This results in the separation of the pigments into distinct bands or spots on the stationary phase.
There are several types of chromatography techniques that can be used to separate pigments from a plant extract, including paper chromatography, thin-layer chromatography, and high-performance liquid chromatography. These techniques vary in their level of sensitivity, resolution, and speed, but they all rely on the principles of chromatography to isolate and identify the different pigments present in the plant extract.

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Grams of nh3 are needed to provide the same number of molecules as in 0. 65 g of sf6 is 0.09 grams.

A mole is a very important unit of measurement that chemists use. A mole of something way you have got 602,214,076,000,000,000,000,000 of that thing, like how having a dozen eggs method you've got twelve eggs. Chemists have to degree the use of moles for very small such things as atoms, molecules, or different debris.

calculation:-

Avogadro's number A = 6.022 x 1023

Molecules of NH3 = Molecules of SF6

An x Weight of NH3 / Molecular Weight of NH3

= A x Weight of SF6 / Molecular Weight of SF6

Weight of NH3 = (Weight of SF6 / Molecular Weight of SF6) x Molecular Weight of NH3

                        = (0.75 / 146.05) x 17.03 = 0.09 grams

The weight of NH3 needed is 0.09 grams

The mole, image mol, is the unit of amount of substance within the international system of devices. the quantity of the substance is a measure of what number of elementary entities of a given substance in an item or sample. The mole is defined as containing exactly 6.02214076×10²³ basic entities

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Answer:

Gene mutation

Explanation:

A gene mutation is a permanent alteration in the DNA sequence that makes up a gene, such that the sequence differs from what is found in most people. Mutations range in size; they can affect anywhere from a single DNA building block base pair to a large segment of a chromosome that includes multiple genes

The amount of heat that must be added for water to steam changes in

H (fusion).

Water exists as a gas in steam. A sufficient amount of heat must be applied to the water to get it to the boiling point, and then further heat must be applied to transform the water's condition from liquid to steam without raising its temperature.

In saturated steam, the connection between temperature and pressure is strictly proportional. In other words, pressure rises as the temperature does.

The amount of heat or energy needed to raise a substance's temperature by 1 °C per unit mass of that substance is known as its specific heat capacity. The equation is Cv = Q / (T m).

The change in heat required to turn water into steam is measured in H (fusion).

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Size-exclusion chromatography (SEC) is a suitable chromatographic method for isolating pure a and b chains.

SEC is a technique that separates molecules based on their size. In this case, the a and b chains can be separated from other components based on their molecular weight. SEC columns have porous beads that allow smaller molecules to enter and travel through the beads, while larger molecules are excluded and elute first. By choosing an appropriate SEC column, the a and b chains, which typically have different molecular weights than other components, can be isolated and collected separately. This method ensures the purity of the isolated a and b chains.

Size-exclusion chromatography (SEC) is a useful chromatographic method for isolating pure a and b chains. The technique separates molecules based on their size, and by utilizing a suitable SEC column, the a and b chains can be separated from other components due to their distinct molecular weights. This approach guarantees the purity of the isolated a and b chains, making it an effective method for their isolation.

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27.95L

According to Charle's law, the volume of a given mass of a gas is directly proportional to absolute temperature provided that the pressure is constant. Mathematically;

where

V1 and V2 are the initial and final volume respectively

T1 and T2 are the initial and final temperature respectively (in Kelvin)

Given the following parameters

Required

Final volume V₂

Substitute the given parameters into the formula to have:

Hence the new volume of the neon gas is 27.95L

HIV is a type of viruses. The HIV positive results indicates the risk of AIDS diseases. It is an immune disorder that makes the body vulnerable to other diseases.

Human immunodeficiency virus (HIV) is the primary cause of the immune system disorder known as AIDS (Acquired immunodeficiency syndrome ).

HIV weakens the immune system and impairs the body's capacity to fend against illness and infection. Contact with infected blood, semen, or vaginal secretions can transfer HIV. HIV/AIDS cannot be cured, however drugs can slow the spread of the virus and stop the disease from getting worse.

2 to 4 weeks after contracting the infection, some HIV-positive individuals have flu-like symptoms. For years, people on HIV drugs might not have any other symptoms.

Fever, exhaustion, and enlarged lymph nodes are just a few of the symptoms that might appear when the virus multiplies and kills immune cells.

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The linen wrapping is approximately 6555 years old.

We know that the half-life of carbon-14 is 5750 years, which means that every 5750 years, the amount of carbon-14 in a sample will be reduced by half. Therefore, we can use this information to calculate the age of the linen wrapping.
n = (ln(percentage of carbon-14 remaining)) / (ln(0.5))
where n is the number of half-lives that have passed.
Using the percentage of carbon-14 remaining in the linen wrapping (75.3%), we can plug this into the formula:

n = (ln(75.3%)) / (ln(0.5))
n = 0.788 / 0.693
n = 1.14
This means that 1.14 half-lives have passed since the linen wrapping was made.
Next, we can calculate the age of the linen wrapping by multiplying the half-life by the number of half-lives:
Age = half-life x number of half-lives
Age = 5750 years x 1.14
Age = 6555 years
Therefore, the linen wrapping is approximately 6555 years old.

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Answer:

6CO2+6H2O->C6H12O6+6O2

Explanation:

CO2+H2O+C6H12O6+O2 This wrong when you write a formula. Don't savage the given question. caused it will affect the same answer.

It will write as this CO2+H20->C6H12O6+O2

So, Think what will you use the numbers in a side of chemical formula/name I am using the "eyes to eyes "caused you need to it properly. If you are not good at it use other method calculate each chemical name example. we have C=1,O=2 then, H=2,O=1 and they other side goes to the arrow is C=6 H=12O=6 ,O=2 I will think what number will make it balance for them and what is lucking see in the my answers what I add in the equation think carefully I didn't change or erase a number of them. Caused it is wrong if you do that. Thank you

Answer:

more energy is absorbed when the bonds in the reactants are broken

The pH of the solution is approximately 4.75. To calculate the pH of a solution containing both acetic acid and its conjugate base, potassium acetate, we need to consider the equilibrium between the acid and its corresponding conjugate base.

Acetic acid (\(CH_{3}COOH\)) is a weak acid that partially dissociates in water, yielding hydrogen ions (H+) and acetate ions (\(CH_{3}COO-\)). The dissociation can be represented as follows: \(CH_{3}COOH\) ⇌ H+ + \(CH_{3}COO-\)

Potassium acetate (\(CH_{3}COOK\)) is a salt that dissociates completely into potassium ions (K+) and acetate ions (\(CH_{3}COO-\)) in water.

In this scenario, the acetate ions from potassium acetate will react with the hydrogen ions from acetic acid, creating an equilibrium that shifts the pH of the solution. This system acts as a buffer solution.

To determine the pH, we need to consider the dissociation constant of acetic acid, known as Ka, which is 1.8 x \(10^{-5}\) at 25°C. Using the Henderson-Hasselbalch equation: pH = pKa + log([A-]/[HA])

where pKa is the negative logarithm of the acid dissociation constant, [A-] is the concentration of the conjugate base (acetate ions), and [HA] is the concentration of the acid (acetic acid).

In this case, the concentrations of acetic acid and potassium acetate are both 0.10 M. Since acetic acid and potassium acetate have the same concentration, the ratio of [A-]/[HA] is 1. Therefore, the equation simplifies to: pH = pKa + log(1)

The log(1) term is zero, so the pH is equal to the pKa. For acetic acid, the pKa is approximately 4.75. Hence, the pH of the solution is approximately 4.75.

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Taking into account the law of conservation of mass and as depicted in the model there are equal number of atoms of reactants and products , thus demonstrating that mass is conserved and in equilibrium.

The law of conservation of mass states that in a chemical reaction mass is neither created nor destroyed. For example, the carbon atom in coal becomes carbon dioxide when it is burned. The carbon atom changes from a solid structure to a gas but its mass does not change.

The Law of conservation of mass and energy are related in the sense that mass and energy are directly proportional which is indicated by the equation E=mc².

The Concept of conservation of mass is generally used in field of chemistry, fluid dynamics.

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The chemical has a molar mass of 72.1 g/mol.

One mole of a chemical has a mass known as its molar mass. The measurement unit is grams per mole (g/mol). We need to know the sample's weight in grams and the number of molecules in order to determine the molar mass of the substance.

In this instance, we are informed that 8.35 x 1021 molecules make up 1.00 grams of the chemical. This knowledge allows us to calculate the molar mass.

We must first determine how many moles are present in the sample. Use the following formula to accomplish this:

Mass of the sample / Molar mass = number of moles

Formula rearranged to account for molar mass:

Molar mass is equal to the mass of the sample divided by the number of moles.

When the values are plugged in, we get:

Sample weight is 1 gram.

8.35 x 1021 molecules are the number of moles.

We can now determine the molar mass:

Molar mass is equal to 1 gram divided by 8.35 x 1021 molecules.

By converting grams to kilograms, we can make the math simpler:

Molar mass is equal to 1.00 x 10-3 kg divided by 8.35 x 1021 molecules.

Now that the units have been cancelled, we can simplify:

Molar mass is calculated as follows: (1.00 x 10-3 kg) / (8.35 x 10-21 molecules) = 1.20 x 10-24 kg/molecule.

The molar mass can finally be converted to grams per mole as follows:

Molar mass is equal to 1.20 x 10-24 kg/molecule times 1000 g/kg times 6.02 x 1023 molecules/mol, or 72.1 g/mol.

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The terminal gas temperature after the isentropic expansion process is approximately 1716 K.

To determine the terminal gas temperature after an isentropic expansion process, we can use the relationship between pressure and temperature known as the Poisson's law:

(T2 / T1) = (P2 / P1)^((γ-1)/γ)

where T1 and T2 are the initial and terminal temperatures respectively, P1 and P2 are the initial and terminal pressures respectively, and γ is the specific heat ratio of the gas.

In this case, the initial pressure (P1) is 500 kPa, the terminal pressure (P2) is 150 kPa, and the initial temperature (T1) is 2000 K. We need to know the specific heat ratio (γ) of the gas to proceed further.

The specific heat ratio, also known as the adiabatic index or ratio of specific heats, depends on the gas being used. For example, for diatomic gases like nitrogen and oxygen, γ is approximately 1.4.

Let's assume γ = 1.4 and calculate the terminal temperature (T2):

(T2 / 2000) = (150 / 500) ^ ((1.4-1) / 1.4)

(T2 / 2000) = 0.3 ^ (0.4 / 1.4)

(T2 / 2000) = 0.3 ^ 0.2857

(T2 / 2000) = 0.858

T2 = 2000 * 0.858

T2 ≈ 1716 K

Therefore, the terminal gas temperature after the isentropic expansion process is approximately 1716 K.

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Answer:

OH

Explanation:

Since one mol is 17g/mol, the formula is simply OH.

O is 16 g per atom and H is 1 g per atom, so when you have one atom of each you get 17 g/mol

The empirical formula represents the molecular formula. Therefore, the molecular formula is also .

The molecular formula of a compound is a representation of the number and types of atoms that make up one molecule of that compound. It shows the actual number of each type of atom in a molecule and is a multiple of the empirical formula.

The empirical formula of the liquid is H, which means it contains one hydrogen and one oxygen atom per molecule.

1(1.008) + 1(15.999) = 17.007 g/mol

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Mg2N3  compound having general formula X2Y2  it having cation as +3 charge and bonds ionically with group 15 in a 2:3 ratio.

When two or more elements combine chemically  in a specific mass ratio, the resulting product is called a compound. Compounds can be defined as substances consisting of two or more different types of elements in a fixed ratio of their atoms.

A compound is one where  different types of atoms have joined together to form molecules. For example, water is a compound. The chemical name of water is H2O because it contains two hydrogen atoms and one oxygen atom chemically bonded together.

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Answer:

-16

81

19

Explanation:

The quadratic regression equation is \(y = -16x^2 +81x\), and the estimated height in 0.25 seconds is 19 feet

Regression equations are used to determine the relationship between sets of data

The dataset is given as:

Time (seconds)       Height (feet)

       0                               0

      0.5                            35

         1                              65

        1.5                             85

         2                              95

        2.5                           100

           3                             95

To determine the quadratic regression equation, we make use of a graphing calculator.

From the graphing calculator, we have the following calculation summary:

a = -16.429

b = 81.071

c = -0.357

A quadratic regression equation, is represented as:

\(y = ax^2 + bx + c\)

So, we have:

\(y = -16.429x^2 +81.071x -0.357\)

Approximate

\(y = -16x^2 +81x\)

The estimated height in 0.25 seconds is:

\(y = -16* 0.25^2 +81 * 0.25\)

\(y = 19.25\\\)

Approximate

\(y = 19\)

Hence, the estimated height in 0.25 seconds is 19 feet

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Answer:

c

Explanation:

Answer:

10 watts

Explanation:

Power = Work / Time

Power = 330 J / 33 s

Power = 10 watts

Answer:

Its axis is tilted by 26.73 degrees with respect to its orbit around the Sun, which is similar to Earth's 23.5-degree tilt. This means that, like Earth, Saturn experiences seasons. Like Jupiter, Saturn is made mostly of hydrogen and helium.

Explanation:

Thats all I could think of, please mark brainliest

Answer:

option 3) They have no freedom to move

Answer:

C

Explanation: